40378808 has 32 divisors (see below), whose sum is σ = 80481600. Its totient is φ = 18926592.

The previous prime is 40378801. The next prime is 40378813. The reversal of 40378808 is 80887304.

It is a super-4 number, since 4×40378808⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40378801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49508 + ... + 50316.

It is an arithmetic number, because the mean of its divisors is an integer number (2515050).

Almost surely, 2^40378808 is an apocalyptic number.

It is an amenable number.

40378808 is a deficient number, since it is larger than the sum of its proper divisors (40102792).

40378808 is a wasteful number, since it uses less digits than its factorization.

40378808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199 (or 1195 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 40378808 is about 6354.4321540166. The cubic root of 40378808 is about 343.0713867968.

The spelling of 40378808 in words is "forty million, three hundred seventy-eight thousand, eight hundred eight".